<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
  <script src="https://cdn.bootcdn.net/ajax/libs/vue/2.6.10/vue.js"></script>
</head>
<body>
<div id="app">
    <ul>
        <li v-for="(value,key) in person" :key="key">
            {{key}} -- {{value}}
        </li>
    </ul>
</div>
<script>
  const vm = new Vue({
    el:"#app",
    data(){
      return{
        person:{
            name:"vue",
            age:"one year"
        }
      }
    },
  })
</script>
</body>
</html>